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Home > Archive>Volume 49, Issue 5, 2020 >1650-1656. DOI:10.12442/j.issn.1002-185X.20190200
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Effect of Ca-addition on Hot deformation Behavior and Workability of Mg-Gd-Y-Zn-Zr Alloy
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Affiliation:

1.University of Science and Technology Beijing;2.CHINA INSTITUTE OF MARINE TECHNOLOGY ECONOMY

Clc Number:

TG146.2+2

Fund Project:

Fundamental Research Funds for the Central Universities (No. 2302016FRF-IC-16-003,2302017FRF-IC-17-001 and 2302018FRF-IC-18-004)

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    Abstract:

    In this paper, effect of Ca on hot deformation behavior and workability of Mg-Gd-Y-Zn-Zr alloy were investigated by Gleeble 3500 thermal simulation tester conducted at a temperature ranging from 573K to 723K and strain rate varying from 0.001s-1 to 1s-1. It’s indicated that the addition of Ca increased the flow stress and hot deformation active energy, widened the range of processing stable zone and the optimal processing zone, but decreased the maximum power dissipation efficient, and inhibited the dynamic recrystallization. Combined the microstructure after thermal compression which was analyzed by laser confocal microscopy, the accuracy of the processing map was verified. The optimized hot processing parameters of Mg-Gd-Y-Zn-Zr were formulated, namely strain rate ranging from 0.001s-1 to 0.01s-1, temperature ranging from 623K to 723K. Depending on the optimum processing parameters, an isothermal forged magnesium alloy with good quality and no deformation defects was fabricated.

    Reference
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[Yujiao Wang, Haitao Jiang, Chaomin Liu, Yun Zhang, Wenqi Guo, Qiang Kang, Zhe Xu, Panpan Wang. Effect of Ca-addition on Hot deformation Behavior and Workability of Mg-Gd-Y-Zn-Zr Alloy[J]. Rare Metal Materials and Engineering,2020,49(5):1650~1656.]
DOI：10.12442/j. issn.1002-185X.20190200

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History
  • Received:March 12,2019
  • Revised:April 22,2019
  • Adopted:May 15,2019
  • Online: June 05,2020

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